1/* $KAME: keydb.h,v 1.9 2000/02/22 14:06:41 itojun Exp $ */ 2 3/* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#ifndef _NETKEY_KEYDB_H_ 33#define _NETKEY_KEYDB_H_ 34#include <sys/appleapiopts.h> 35 36#ifdef KERNEL 37#ifdef KERNEL_PRIVATE 38 39#include <netkey/key_var.h> 40 41/* Security Assocciation Index */ 42/* NOTE: Ensure to be same address family */ 43struct secasindex { 44 struct sockaddr_storage src; /* srouce address for SA */ 45 struct sockaddr_storage dst; /* destination address for SA */ 46 u_int16_t proto; /* IPPROTO_ESP or IPPROTO_AH */ 47 u_int8_t mode; /* mode of protocol, see ipsec.h */ 48 u_int32_t reqid; /* reqid id who owned this SA */ 49 /* see IPSEC_MANUAL_REQID_MAX. */ 50}; 51 52/* Security Association Data Base */ 53struct secashead { 54 LIST_ENTRY(secashead) chain; 55 56 struct secasindex saidx; 57 58 struct sadb_ident *idents; /* source identity */ 59 struct sadb_ident *identd; /* destination identity */ 60 /* XXX I don't know how to use them. */ 61 62 u_int8_t state; /* MATURE or DEAD. */ 63 LIST_HEAD(_satree, secasvar) savtree[SADB_SASTATE_MAX+1]; 64 /* SA chain */ 65 /* The first of this list is newer SA */ 66 67 struct route sa_route; /* route cache */ 68}; 69 70/* Security Association */ 71struct secasvar { 72 LIST_ENTRY(secasvar) chain; 73 LIST_ENTRY(secasvar) spihash; 74 int refcnt; /* reference count */ 75 u_int8_t state; /* Status of this Association */ 76 77 u_int8_t alg_auth; /* Authentication Algorithm Identifier*/ 78 u_int8_t alg_enc; /* Cipher Algorithm Identifier */ 79 u_int32_t spi; /* SPI Value, network byte order */ 80 u_int32_t flags; /* holder for SADB_KEY_FLAGS */ 81 82 struct sadb_key *key_auth; /* Key for Authentication */ 83 struct sadb_key *key_enc; /* Key for Encryption */ 84 caddr_t iv; /* Initilization Vector */ 85 u_int ivlen; /* length of IV */ 86 void *sched; /* intermediate encryption key */ 87 size_t schedlen; 88 89 struct secreplay *replay; /* replay prevention */ 90 long created; /* for lifetime */ 91 92 struct sadb_lifetime *lft_c; /* CURRENT lifetime, it's constant. */ 93 struct sadb_lifetime *lft_h; /* HARD lifetime */ 94 struct sadb_lifetime *lft_s; /* SOFT lifetime */ 95 96 u_int32_t seq; /* sequence number */ 97 pid_t pid; /* message's pid */ 98 99 struct secashead *sah; /* back pointer to the secashead */ 100 101 /* Nat Traversal related bits */ 102 u_int32_t natt_last_activity; 103 u_int16_t remote_ike_port; 104 u_int16_t natt_encapsulated_src_port; /* network byte order */ 105}; 106 107/* replay prevention */ 108struct secreplay { 109 u_int32_t count; 110 u_int wsize; /* window size, i.g. 4 bytes */ 111 u_int32_t seq; /* used by sender */ 112 u_int32_t lastseq; /* used by receiver */ 113 caddr_t bitmap; /* used by receiver */ 114 int overflow; /* overflow flag */ 115}; 116 117/* socket table due to send PF_KEY messages. */ 118struct secreg { 119 LIST_ENTRY(secreg) chain; 120 121 struct socket *so; 122}; 123 124#ifndef IPSEC_NONBLOCK_ACQUIRE 125/* acquiring list table. */ 126struct secacq { 127 LIST_ENTRY(secacq) chain; 128 129 struct secasindex saidx; 130 131 u_int32_t seq; /* sequence number */ 132 long created; /* for lifetime */ 133 int count; /* for lifetime */ 134}; 135#endif 136 137/* Sensitivity Level Specification */ 138/* nothing */ 139 140#define SADB_KILL_INTERVAL 600 /* six seconds */ 141 142struct key_cb { 143 int key_count; 144 int any_count; 145}; 146 147/* secpolicy */ 148extern struct secpolicy *keydb_newsecpolicy(void); 149extern void keydb_delsecpolicy(struct secpolicy *); 150/* secashead */ 151extern struct secashead *keydb_newsecashead(void); 152// extern void keydb_delsecashead(struct secashead *); // not used 153/* secasvar */ 154// extern struct secasvar *keydb_newsecasvar(void); // not used 155// extern void keydb_refsecasvar(struct secasvar *); // not used 156// extern void keydb_freesecasvar(struct secasvar *); // not used 157/* secreplay */ 158extern struct secreplay *keydb_newsecreplay(size_t); 159extern void keydb_delsecreplay(struct secreplay *); 160/* secreg */ 161// extern struct secreg *keydb_newsecreg(void); // not used 162// extern void keydb_delsecreg(struct secreg *); // not used 163 164#endif /* KERNEL_PRIVATE */ 165#endif /* KERNEL */ 166 167#endif /* _NETKEY_KEYDB_H_ */ 168